US9205736B2 - Fueling-error prevention device - Google Patents

Fueling-error prevention device Download PDF

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Publication number
US9205736B2
US9205736B2 US13/510,456 US201013510456A US9205736B2 US 9205736 B2 US9205736 B2 US 9205736B2 US 201013510456 A US201013510456 A US 201013510456A US 9205736 B2 US9205736 B2 US 9205736B2
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Prior art keywords
slider
fueling
lock member
flap valve
flow path
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US13/510,456
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US20120279612A1 (en
Inventor
Yosuke Washio
Hiroyuki Yoshii
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Nifco Inc
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Nifco Inc
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Assigned to NIFCO INC. reassignment NIFCO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YOSHII, HIROYUKI, WASHIO, YOSUKE
Publication of US20120279612A1 publication Critical patent/US20120279612A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/04—Tank inlets
    • B60K2015/0458—Details of the tank inlet
    • B60K2015/0483—Means to inhibit the introduction of too small or too big filler nozzles

Definitions

  • the present invention relates to an improvement of a fueling-error prevention device which is provided in an inside of a fuel flow path between a fueling opening and a fuel tank; blocks the fueling by a fueling nozzle when the fueling nozzle having a diameter less than a predetermined diameter is inserted in the fuel flow path; and allows the fueling by the fueling nozzle when the fueling nozzle having the predetermined diameter is inserted in the fuel flow path.
  • Patent Document 1 There is a device shown in Patent Document 1, which prevents the fueling of non-predetermined types of fuels by the fueling nozzle which does not reach the predetermined diameter, i.e., a fueling error, with a mechanical structure.
  • a flap which becomes a valve body is rotatably attached to one of a pair of reception means which can be pressed apart outwardly, and in a state before a pair of the reception means is pressed apart, a free end of the flap is engaged with the other of a pair of the reception means so as to block a rotation of the flap in a valve-opened position.
  • Patent Document 1 Japanese Unexamined Patent Publication No. 2009-502611
  • the main feature to be solved by the present invention is to provide a device which can reliably prevent the fueling error with the mechanical structure.
  • a fueling-error prevention device is provided inside of a fuel flow path between a fueling opening and a fuel tank.
  • the fueling-error prevention device comprises a flap valve provided on one of the first or the second sliders which are disposed opposite each other with the fuel flow path positioned therebetween.
  • the fueling nozzle Accompanied by an insertion of a fueling nozzle having a predetermined diameter, the fueling nozzle abuts against one of both sliders, so that one slider moves in a separating direction so as to allow the other of both sliders to move in the separating direction. Accordingly, due to the movement of the other slider in the separating direction by the abutment of the fueling nozzle, the flap valve is allowed to be opened.
  • the fueling-error prevention device is provided inside of the fuel flow path between the fueling opening and the fuel tank.
  • the fueling-error prevention device comprises the flap valve positioned in a valve-closed position blocking the fuel flow path by urging to block the fueling nozzle from proceeding; the first slider supporting the flap valve openably and closably, and also supported slidably and movably in a direction crossing an axis line of the fuel flow path; the second slider comprising an engaging portion relative to the flap valve which is in the valve-closed position, and also supported slidably and movably in the direction crossing the axis line of the fuel flow path; an urging device urging the first slider and the second slider in an approaching direction; and a lock member blocking one of either the first slider or the second slider from moving in the separating direction against the urging of the urging device.
  • the blocking of the movement by the lock member is released by the movement of the other of the first slider or the second slider which moves against the urging of the urging device by the abutment of the fueling nozzle having the predetermined diameter accompanied by the insertion of the fueling nozzle having the predetermined diameter.
  • the aforementioned release allows one of the first slider or the second slider to move against the urging of the urging device due to the abutment of the fueling nozzle. Due to the movement of one slider, an engagement of the second slider relative to the flap valve is released.
  • lock member is supported slidably and movably between a lock position blocking one of either the first slider or the second slider from moving in the separating direction, and a non-lock position, and also that the lock member is recoiled and urged toward the lock position.
  • lock member includes an abutting portion relative to a back portion of one of either the first slider or the second slider, and moves up to the non-lock position in a direction along the axis line of the fuel flow path against the urging to release the abutment of the abutting portion relative to the back portion.
  • a movement to a valve-opened position of the flap valve closing the fuel flow path openably is allowed for the first time by the movement of one of the first or the second sliders which becomes movable as a trigger of the movement of the other of the first or the second sliders. Accordingly, in addition to the movement of the other of the first or the second sliders, as long as a fueling nozzle having a thickness allowing one of the first or the second sliders to move for a predetermined distance, i.e., the fueling nozzle having the predetermined diameter is not inserted into the fuel flow path, the flap valve never moves to the valve-opened position. For example, even if the fueling nozzle which does not reach the predetermined diameter is inserted into the fuel flow path, and is operated to sway inside the fuel flow path, only the other of the first or the second sliders moves, and the flap valve is never opened.
  • the fueling of the non-predetermined types of fuels by the fueling nozzle which does not reach the predetermined diameter, i.e., the fueling error, can be reliably prevented.
  • FIG. 1 is a perspective view showing a condition wherein a fueling-error prevention device according to the present invention is built into a filler neck.
  • FIG. 2 is a side view of the prevention device in a state wherein a fueling nozzle is not inserted.
  • FIG. 3 is a vertical cross-sectional view of the state of FIG. 2 .
  • FIG. 4 is a side view of the prevention device in a state wherein the fueling nozzle having a predetermined diameter is inserted, and shows a state just before a flap valve is open.
  • FIG. 5 is a vertical cross-sectional view of the state of FIG. 4 .
  • FIG. 6 is a cross-sectional view of the prevention device in the state wherein the fueling nozzle having the predetermined diameter is inserted, and shows a state wherein the flap valve is open.
  • FIG. 7 is a cross-sectional view of the prevention device in a state wherein the fueling nozzle having a diameter less than the predetermined diameter is inserted.
  • FIG. 8 is an exploded perspective view of the prevention device.
  • FIG. 9 is a perspective view of a second slider and a lock member.
  • FIG. 10 is a perspective view of a first slider and the flap valve.
  • FIG. 11 is a perspective view showing the prevention device by cutting away a flange of a base.
  • FIG. 12 is a perspective view showing a state wherein the first slider, the second slider, the flap valve, the lock member, and an urging device are combined by omitting the base, and the lock member is in a lock position.
  • FIG. 13 is a perspective view showing the state of FIG. 12 viewed from a side of the lock member.
  • FIG. 14 is a perspective view showing a state wherein the lock member is moved to a non-lock position from the state of FIG. 13 .
  • FIG. 15 is a side view showing a modified example of a shape of the prevention device shown in FIGS. 1 to 14 .
  • FIG. 16 is a cross-sectional view showing a condition wherein the prevention device shown in FIG. 15 is built into the filler neck.
  • FIG. 17 is a perspective view showing the first slider and the flap valve structuring the prevention device shown in FIG. 15 .
  • a fueling-error prevention device is provided in an inside of a fuel flow path L between a fueling opening H and a fuel tank; blocks the fueling by a fueling nozzle N′′ having a diameter less than a predetermined diameter when the fueling nozzle N′′ having the diameter less than the predetermined diameter is inserted in the fuel flow path L; and allows the fueling by a fueling nozzle N′ having the predetermined diameter when the fueling nozzle N′ having the predetermined diameter is inserted in the fuel flow path L.
  • such prevention device opens the later-mentioned flap valve 1 , and allows an insertion of the fueling nozzle further than the flap valve 1 to allow a fueling thereof.
  • the fueling nozzle of the fueling gun which fuels a gasoline fuel and has a diameter smaller than that of the fueling nozzle of the fueling gun which fuels the diesel fuel from the fueling opening H
  • such prevention device maintains a valve-closed state of the later-mentioned flap valve 1 , and blocks the insertion of the fueling nozzle further than the flap valve 1 to be incapable of the fueling thereof.
  • Such prevention device comprises the flap valve 1 , first and second sliders 2 and 3 , an urging device 4 , and a lock member 5 .
  • the aforementioned members are combined in an approximately cylindrical base 6 whose inner side is one portion of the fuel flow path L. Then, in the present embodiment, by fitting such base 6 in an inside of a filler neck Pa of a filler pipe P structuring the fuel flow path L, the prevention device is provided in the inside of the fuel flow path L.
  • Such base 6 has an external diameter which can be housed in the inside of the filler neck Pa with a small gap, and also includes a flange 6 a on an upper end of a cylinder. Then, such base 6 is entered in the inside of the filler neck Pa from a lower end side thereof up to a position wherein the flange 6 a is caught on an upper end of the filler neck Pa, so that engagement claws represented by the reference numeral 6 b in the drawings are engaged with latch-engaged portions which are not shown in the drawings on a filler neck Pa side. Accordingly, the base 6 is assembled in such filler neck Pa.
  • the reference numeral 6 c in the drawings represents a cap covering an upper surface of the flange 6 a.
  • window hole-like portions 6 e which are removed from a position just below the flange 6 a up to a position of an approximately middle in a cylinder axis direction of the base 6 .
  • the window hole-like portions 6 e are respectively provided on both sides in a diametrical direction of the base 6 .
  • the flap valve 1 is rotatably combined in the first slider 2 , and in a valve-closed position, the flap valve 1 closes the fuel flow path L by arranging a flap surface 1 a in a direction orthogonal to the cylinder axis direction of the base 6 . (FIG.
  • the second slider 3 engages with the flap valve 1 which is in the valve-closed position so as to maintain the valve-closed state.
  • On an outer circumferential portion of the base 6 there is formed a guide portion 6 f of the later-mentioned linkage arms 32 of the second slider 3 .
  • the flap valve 1 is positioned in the valve-closed position closing the fuel flow path L by urging so as to block the fueling nozzle from proceeding.
  • such flap valve 1 is structured to form an approximately discoid shape having a size closing the fuel flow path L inside the base 6 in the valve-closed position.
  • the first slider 2 supports the flap valve 1 openably and closably, and also is supported in the base 6 slidably and movably in a direction crossing an axis line x (a center line in a flow direction of a fuel) of the fuel flow path L.
  • such first slider 2 comprises the main body portion 20 , and a support portion 21 of the flap valve 1 integrally provided in a lower portion of the main body portion 20 .
  • the main body portion 20 comprises a ceiling surface portion 20 a , right-and-left side surface portions 20 b and 20 b , and the front surface portion 20 d facing the fuel flow path L.
  • there are respectively formed projections 20 c which can be housed in a groove 6 h ( FIG. 11 ) provided in support walls 6 g formed in such a way as to respectively protrude to an outside in both right-and-left side positions clamping the window hole-like portions 6 e in the base 6 .
  • the first slider 2 slides and moves within a range of the groove 6 h .
  • the front surface portion 20 d forms an arc shape following an arc of an inner surface of the base 6 , and also as heading for a lower side, the front surface portion 20 d has a slope gradually hanging over an inner side of the fuel flow path L.
  • the support portion 21 is structured by a right-and-left pair of side plates 21 a and 21 a protruding to the lower side from the lower portion of the main body portion 20 .
  • a right-and-left pair of bearing ear portions 1 b and 1 b there is formed a right-and-left pair of bearing ear portions 1 b and 1 b , and in a state wherein the bearing ear portions 1 b are housed between a pair of the side plates 21 a and 21 a of the support portion 21 , the bearing ear portions 1 b corresponding to a pair of such respective side plates 21 a and 21 a are rotatably assembled in axis holes 1 c and 21 b formed in the bearing ear portions 1 b and the side plates 21 a by passing axis pins 1 d.
  • a winding portion 1 f of a torsion coil spring 1 e is held between a pair of the bearing ear portions 1 b and 1 b of the flap valve 1 . Due to the urging of the spring 1 e which is held in the aforementioned manner and also whose one end of the spring is caught on a flap valve 1 side and whose the other end of the spring is caught on a back portion 20 e side of the first slider 2 , the flap valve 1 is positioned in the valve-closed position wherein the flap surface 1 a on a base end side thereof is hit against the lower portion of the main body portion 20 of the first slider 2 .
  • the second slider 3 comprises an engaging portion 30 relative to the flap valve 1 which is in the valve-closed position, and also is supported in the base 6 slidably and movably in the direction crossing the axis line x of the fuel flow path L.
  • such second slider 3 comprises the main body portion 31 , and the linkage arms 32 whose arm base portions are integrally linked to a lower portion of the main body portion 31 , and which protrude in a direction orthogonal to the axis line x of the fuel flow path L.
  • the linkage arms 32 are respectively provided on both right and left sides clamping the main body portion 31 .
  • the linkage arms 32 link the arm base portions to a back side of the main body portion 31 to be positioned outside the base 6 .
  • the linkage arms 32 protrude to the first slider 2 side in such a way as to clamp the base 6 between a right-and-left pair of the linkage arms 32 and 32 , and arm ends are positioned just below the first slider 2 .
  • the guide portion 6 f On the outer circumferential portion of the base 6 , there is formed the guide portion 6 f forming a step-difference form and facing a lower surface of the flange 6 a , and the linkage arms 32 of the second slider 3 slide on the guide portion 6 f.
  • the main body portion 31 comprises a ceiling surface portion 31 a , right-and-left side surface portions 31 b and 31 b , and the front surface portion 31 c facing the fuel flow path L.
  • the front surface portion 31 c forms an arc shape following the arc of the inner surface of the base 6 , and also as heading for a lower side, the front surface portion 31 c has a slope gradually hanging over the inner side of the fuel flow path L.
  • a clamping piece 31 d protruding to the inner side of the fuel flow path L by leaving an interval for clamping a free end of the flap valve 1 between the main body portion 31 .
  • the urging device 4 urges the first slider 2 and the second slider 3 in an approaching direction.
  • one end of the spring is fastened to one of the linkage arms 32 of the second slider 3
  • the other end of the spring is fastened to the other of the linkage arms 32 of the second slider 3 .
  • the urging device 4 is structured by a coil spring 40 stretched and whose intermediate portion of the spring is pressed against a back portion of the main body portion of the first slider 2 .
  • the first slider 2 and the second slider 3 are positioned in a position wherein a distance between a lower end side of the front surface portion 20 d of the main body portion 20 of the first slider 2 and a lower end side of the front surface portion 31 c of the main body portion 31 of the second slider 3 is made slightly smaller than an external diameter of the fueling nozzle N′ having the predetermined diameter forming a cylinder shape. ( FIG. 3 )
  • the lock member 5 blocks a movement in a separating direction of one of either the first slider 2 or the second slider 3 against the urging of the urging device 4 . In the illustrated example, such lock member 5 blocks the movement in a direction wherein the first slider 2 is separated from the second slider 3 .
  • lock member 5 is supported slidably and movably between a lock position blocking the movement in the separating direction of the first slider 2 , and a non-lock position, and also is recoiled and urged toward the lock position.
  • such lock member 5 comprises a central portion 50 positioned on the lower side of the first slider 2 , and arm portions 51 provided respectively on both right and left sides clamping the central portion 50 in such a way as to protrude toward a side of the second slider 3 from the central portion 50 .
  • the central portion 50 of the lock member 5 is housed in a space formed on the lower side of the main body portion 20 of the first slider 2 to be movable in a direction along the axis line x of the fuel flow path L, i.e., up and down.
  • An upper end of a spring of a compression coil spring 52 whose lower end of the spring contacts with a support portion 6 i of the base 6 , which is located in a position just below the central portion 50 of the lock member 5 and faces the aforementioned space, is pressed against a lower portion of the central portion 50 of the lock member 5 . Due to the spring 52 , the lock member 5 is positioned in the lock position.
  • abutting portions 50 a which become one portion of a front surface portion of the central portion 50 of the lock member 5 which is in the lock position (the position in FIG. 3 ) abut against abutted portions 20 f which become one portion of a back portion 20 e of the first slider 2 in the support portion 21 of the flap valve 1 of the first slider 2 . ( FIG. 13 ) Then, when the lock member 5 moves to the lower side up to the non-lock position (the position in FIG.
  • arm end sides of the linkage arms 32 of the second slider 3 and the arm portions 51 of the lock member 5 comprise a cam device moving the lock member 5 to the non-lock position by the movement of the second slider 3 in the separating direction.
  • cam device is structured by cam grooves 32 a formed on the arm end sides of the linkage arms 32 of the second slider 3 , and sliding members 51 a formed in the arm portions 51 of the lock member 5 .
  • one of the right-and-left arm portions 51 and 51 of the lock member 5 is positioned on an inside of one of the right-and-left linkage arms 32 and 32 of the second slider 3 , and the sliding member 51 a forming a projection formed in an outside of one of the arm portions 51 is housed in the cam groove 32 a formed in one of the linkage arms 32 .
  • the other of the right-and-left arm portions 51 and 51 of the lock member 5 is positioned on the inside of the other of the right-and-left linkage arms 32 and 32 of the second slider 3 , and the sliding member 51 a forming the projection formed in the outside of the other of the arm portions 51 is housed in the cam groove 32 a formed in the other of the linkage arms 32 .
  • the cam groove 32 a positions one groove end 32 b , which is close to a main body portion 31 side of the second slider 3 , on an upper side; extends from there toward the arm end of the linkage arm 32 in such a way as to form an arc shape; and positions the other groove end 32 c on a lower side. Then, in a state before the second slider 3 moves in the separating direction, the sliding member 51 a is positioned in one groove end 32 b of the cam groove 32 a . ( FIG. 2 )
  • the blocking of the movement of the first slider 2 in the separating direction by the lock member 5 is released by the movement of the second slider 3 moving against the urging of the urging device 4 by abutting against the fueling nozzle N′ having the predetermined diameter accompanied by an insertion of the fueling nozzle N′ having the predetermined diameter.
  • the aforementioned release allows the movement by the abutment of the fueling nozzle N′ of the first slider 2 against the urging of the urging device 4 , and the movement of the first slider 2 allows an engagement relative to the flap valve 1 of the second slider 3 to be released.
  • the fueling nozzle N′ having the predetermined diameter when the fueling nozzle N′ having the predetermined diameter is inserted into the fuel flow path L from the fueling opening H, the fueling nozzle N′ abuts against both the front surface portion 20 d of the main body portion 20 of the first slider 2 and the front surface portion 31 c of the main body portion 31 of the second slider 3 .
  • the first slider 2 does not move in the separating direction immediately, and first, the second slider 3 moves in the separating direction for a predetermined distance.
  • the movement to the valve-opened position of the flap valve 1 closing the fuel flow path L openably is allowed for the first time by the movement of one of the first or the second sliders 2 and 3 which becomes movable as a trigger of the movement of the other of the first or the second sliders 2 and 3 . Accordingly, in addition to the movement of the other of the first or the second sliders 2 and 3 , as long as a fueling nozzle having a thickness allowing one of the first or the second sliders 2 and 3 to move for the predetermined distance, i.e., the fueling nozzle N′ having the predetermined diameter is not inserted into the fuel flow path L, the flap valve 1 never moves to the valve-opened position.
  • a lock member which is substantially the same as the aforementioned lock member 5 and is not shown in the drawings, can block the movement of the second slider 3 in the separating direction, and the movement of the lock member, which is not shown in the drawings, to the non-lock position can be also released by interlocking with the movement of the first slider 2 moving against the urging of the urging device 4 by abutting against the fueling nozzle N′ having the predetermined diameter accompanied by the insertion of the fueling nozzle N′ having the predetermined diameter.
  • such release allows the movement by the abutment of the fueling nozzle N′ of the second slider 3 against the urging of the urging device 4 , and the movement of the second slider 3 releases the engagement relative to the flap valve 1 .
  • FIGS. 15 to 17 comprise the substantially same structure as the fueling-error prevention device shown in FIGS. 1 to 14 .
  • FIGS. 15 to 17 show another example of the fueling-error prevention device structured by modifying a shape of each structural member of the fueling-error prevention device shown in FIGS. 1 to 14 . Therefore, the same symbols used in FIGS. 1 to 14 are assigned to the substantially same parts shown in FIGS. 15 to 17 , and explanations regarding the substantially same structures are omitted.
  • the flap valve 1 , the torsion coil spring 1 e urging the flap valve, and the filler pipe P are structured by metal having a conductive property.
  • another example shown in FIGS. 15 to 17 comprises an extension portion 1 g whose the other spring end, caught on the back portion 20 e of the first slider 2 in the torsion coil spring 1 e from the lower side, extends outwardly from the back portion 20 e further, and is always electrically connected to an inner surface of the fuller pipe P.
  • One spring end of the torsion coil spring 1 e is pressed against the flap valve 1 from the lower side, and is electrically connected to the flap surface 1 a of the flap valve 1 .
  • the base 6 is structured by connecting a lower end of an upper-portion cylinder body 6 ′′ relative to an upper end of a lower-portion cylinder body 6 ′ wherein the flap valve 1 , the first slider 2 , the second slider 3 , the urging device 4 , and the lock member 5 are combined, and the flange 6 a is formed in the upper-portion cylinder body 6 ′′.
  • a female screw portion 6 j wherein a male screw portion of a filler cap which is not shown in the drawings is screwed, and by fitting the fueling-error prevention device in an inside of the filler neck Pa, a screwing structure of the filler cap can be formed on a filler pip P side.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US13/510,456 2009-11-18 2010-11-17 Fueling-error prevention device Active 2032-03-28 US9205736B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JPJP2009-263189 2009-11-18
JP2009-263189 2009-11-18
JP2009263189 2009-11-18
PCT/JP2010/070494 WO2011062193A1 (ja) 2009-11-18 2010-11-17 誤給油防止装置

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US20120279612A1 US20120279612A1 (en) 2012-11-08
US9205736B2 true US9205736B2 (en) 2015-12-08

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US (1) US9205736B2 (de)
EP (1) EP2502772B1 (de)
JP (1) JP5286423B2 (de)
CN (1) CN102686438B (de)
WO (1) WO2011062193A1 (de)

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JP7131529B2 (ja) * 2019-11-13 2022-09-06 豊田合成株式会社 給油装置
JP7192746B2 (ja) * 2019-11-13 2022-12-20 豊田合成株式会社 給油装置
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EP2502772A1 (de) 2012-09-26
EP2502772B1 (de) 2014-08-27
EP2502772A4 (de) 2013-06-26
JP5286423B2 (ja) 2013-09-11
CN102686438A (zh) 2012-09-19
CN102686438B (zh) 2015-04-29
US20120279612A1 (en) 2012-11-08
JPWO2011062193A1 (ja) 2013-04-04

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